I08 RANUNCULACEAE. 



Ranunculus macounii Britt. Usually bristly hairy throughout; stems 

 ascending or reclining, 30-60 cm. long; leaves ternately divided, the segments 

 stalked, broadly ovate, 3-cleft or parted, and incisely toothed; petals bright 

 yellow, obovate, 6 mm. long, exceeding the calyx; akenes in a globose head, 

 each with a stout straight flattened beak. In low wet meadows. 



146. DELPHINIUM. Larkspur. 



Annual or perennial erect branching herbs; leaves palmately 

 lobed or divided; flowers showy, in a raceme or panicle; sepals 5, 

 petal-like, the upper one prolonged into a spur; petals 4, some- 

 times 2; the two posterior ones spurred; the lateral, when pres- 

 ent, small; stamens numerous; pistils 1-5, sessile, many-ovuled, 

 forming follicles at maturity. 



Roots fascicled, elongate, not tuber-like; large 

 plants about a meter high. 

 Inflorescence ashy-puberulent. D. scopulorum stachydeum. 



Inflorescence villous. D. subalpinum. 



Roots thickened, forming an irregular tuber; 

 smaller plants. 

 Pedicels mostly shorter than the spurs and the 

 raceme spike-like; sepals erect or but 

 little spreading. 

 Flowers usually 10-30; leaves rather few; 



pubescence villous and somewhat viscid. D. cyanoreios. 

 Flowers very many; leaves rather nu- 

 merous ; pubescence not villous, some- 

 what appressed. 

 Leaves glabrous or mostly so, the lower 



with broad lobes. D. distichum. 



Leaves puberulent, all with narrow lobes. D. simplex. 

 Pedicels longer than the spurs; sepals wide- 

 spreading. 

 Pubescence minute, of white appressed 



hairs. D. menziesii. 



Pubescence villous in character, present at 

 at least on the bracts. 

 Pods glabrous; inflorescence glabrous or 



nearly so. D. columbianum. 



Pods villous ; inflorescence usually villous 

 and viscid. D. depauperatum. 



Delphinium scopulonun stachydetun Gray. Tufted, ashy-puberulent 

 throughout ; stems 1-2 m. high ; leaves orbicular in outline, 5-7-clef t or parted, 

 the lobes again cleft, those of the lower leaves cuneate and rather broad, of 

 the upper narrower or linear; larger leaves S-10 cm. broad, the petioles as 

 long or longer and scarcely dilated at the base; inflorescence paniculate, or on 

 smaller stems racemose, the principal axis densely flowered and spike-like, 

 often 30 cm. long; flowers dull blue; calyx puberulent outside, the sepals erect 

 or but little spreading, about 1 cm. long, as is also the spur; follicles puberulent, 

 veiny, not spreading, 1-1.5 cm. long, longer than the pedicels. High ridges 

 of the Blue Mountains. 



Delphinium subalpinum (Gray) A. Nelson. Similar to D. scopulorum 

 stachydeum; leaf lobes mostly cuneate; panicle looser, sparsely villous and 



